Pressed or molded glassware.



O. A. MYGATT. PRESSED OR MOLDED GLASSWARE. APPLICATION FILED JUNE 2a, 1908 Patented June 23, 1914 2 SHEETS-SHEET 1.

.l c lw/ msss INVEN TOR A TTORNEYS O. A. MYGATT.

PRESSED 0R MOLDED CLASSWARE.

APPLICATION FILED JUNE 23, 1908. 1,101,035. Patented June 23,1914.

2 SHEETSSHEET 2.

OUTS/DE 175/05 a a INVENTOH WITNESSES A TTOHNE Y8 STATES PATENT OFFICE.

o'rxs A. MYGAT'T. or NEW YORK. \N. Y.

PRESSED OR MOLDED GLASSWARE Specification of Letters Patent. Pg tentd J 11119 23, 1914.

Application filed June 23. 1908. Serial No. 439,988.-

To all whom it may concern:

Be it known that I, O'ris A. \Ii'ox'rr, a

citizen of the United Statesfresiding at New York, in the county of New York and State of New- York, haveinvented certain new and useful Improvements in Pressed or Molded Glassware, ofwhich the following is a specification, reference being bad therein to the accompanying drawings.

The object of my invention 15 to make glassware, such as tableware, flower vases and glass inclosures for artificial light, etc., more brilliant and attractive.

A glass inclosure having on its outer surface designs formed of ribbings running in two or more directions is provided with interior radial prisms to enhance the brilliancy of the outer decorative design. Interior longitudinal flutings {or purposes of li ht diffusion have been used in connection .with horizontal light distributing prisms,

but this type of tinting would not, even if used with outside decorative designs, m-

- crease their brilliancy.

Figure 1 is a bottom perspective of an inclosnre embodying my invention. F 2 is a bottom perspective of another inclosure embodying my invention. Fig. 3 is a bottom perspective of.another inclosure embodying my invent-ion. Fig. 4 is a horizontal crosssection of Fig. 3 on lines 44-exce t that the section is shown as straight for t 1e purpose of indicating the path of light rays more simply.

The designs on ribbings which run in two or more directions, that is, there are always a certain number of outer corrugationswhich do not parallel the inner corrugations. Longitudinal double reflecting prisms are employed on the inside of the inclosures to provide a backing for the exterior designs. In this manner aport-ion of the light rays entering through the corrugations on the outside of the inclosure is reflected back by the interior double reflecting prisms, thus causing the exterior designs to appear more brilliantthan they would .with'a smooth interior surface. The operation is shown" in Fig. 4 which a cross-section in which the double reflecting prisms X are on the inner surface and transmitting ribs running in two. or more directions arcon the outer surface Y.

the outside of the glass .ware shown 1n the figures are composed of This is thecombination which would be employed in an inclosure to-be viewed by daylight. that is, the exterior ribbings are not to be used to reflect light down and out of the open mouth of the inclosure, but toallow transmission. To the left of the diagram is shown the direction of the light rays a, a, a, points,.and to the right the spreading and converging of the light emitted by small sections I, b of the surface. The parallel incident rays converge and spread causing high and 'low light areasto appear on the- I This is caused by the inner longitudinal reflecting prisms.

outer surface of the glass.

In inclosures which are intended to transmit light front sources within (not to reflect it down), or to receive light from outside the inclosure as in the case of globes or tableware I employ designs on the outside which are composed of retracting light transmitting ribs running in a plurality of directions in combination with the-interior double reflecting radial prisms above referred to. Fig. 4 shows the passage of light rays in that event.

\Vhere the inclosure is intended as an e tc., entering and emerging at various.

artificial light reflector, I use designs embodying double reflecting prismspn the outside of the glass, in combination with inner radial double reflecting prisms.

In most cases it is possible to employ the same molds which are now used-for making the] various types of decorative pressed glassware by making new plungers for the same. Instead of the usual smooth plunger substitute a plunger of exactly the same shape, but having substantially longitudinal outer surface, and their inner surface covdirections, and on their inner surface subered with substantially double reflecting .stantially longitudinal refiectlng prisms.

prisms lying in planes passing through the axis of the glass inclosure. OTIS MYGATT' 3. Glass inclosures having on their outer Witnesses:

surface curved outline corrugations banded W A. Donsr',

by lines running in more than two difi'erent I J O'EL B. LIBERMAN. 

